5402ST C-Series
Royal Oak Jumbo 5402 — 5402ST C-Series
1976–c. 1980
Small numbers C1000–C2000; the first left the workshop on 1 December 1976. The series spans the move of the AP monogram from 6 to 12 o’clock, decided on 24 February 1977.
952 sold: 10 (1976), 459 (1977), 234 (1978), 223 (1979), then a few to 1987. AP’s dating table: C1000–C1500 1976–78, C1500–C2000 1978–80.
No verified image of this watch yet
Identifying details
Variants of 5402
Reference overview →| Variant | Production |
|---|---|
| 5402ST A-Series | 1972–c. 1976 |
| 5402ST A-Series · Steel bezel screws (earliest examples) | c. 1972 |
| 5402ST without small number (Intermediate series) | 1974–c. 1976 |
| 5402ST B-Series | 1975–c. 1977 |
Case & movement
- Reference
- 5402
- Production
- 1976–c. 1980
- Case serials
- c. 1,000–2,000
- Case material
- Stainless steel
- Case diameter
- 39 mm
- Water resistance
- 100 m
- Crystal
- Sapphire
- Movement
- Automatic
More specifications (2)
- Date
Movement
Audemars Piguet 2121
Date version of the 2120, introduced in October 1970 in model 5381 and chosen for the first Royal Oak in 1972; at the time the thinnest automatic with central rotor and date. Ébauche from LeCoultre & Cie until about 2002, then made by AP; replaced by the 7121 in 2022.
Automatic · Introduced 1970 · 19,800 vph · 36 jewels · 40 h reserve · Ø 28 mm · 3.05 mm thick